Counts up then at some point it resets.
2 of the 555 outputs are connected to a and gate. The and gate connected to the two chips that count up. The timmer connected to reset after some time it will pulse and reset the LCD. The other 2 555 chips are set to a way were they will pulse at a close time but other times they will pulse at a different time. Only when they pulse at the same time will it count up. After a bit of time it will reset and start over again.
Please tell me of you can find a pattern for this I can't seem to find one. Thanks for looking at the circuit.
